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fix bugs with negative viewports

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it
it renders out of bounds pixels...........
This commit is contained in:
Jaklyy 2024-04-27 12:37:48 -04:00
parent 9b106d064d
commit 72ffe6b297
1 changed files with 14 additions and 2 deletions
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16
src/GPU3D_Soft.cpp
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@ -957,7 +957,6 @@ bool SoftRenderer::RenderShadowMaskScanline(const GPU3D& gpu3d, RendererPolygon*
if (x < 0) x = 0;
s32 xlimit;
if (xend > 256) xend = 256;
if (accuracy)
{
@ -973,6 +972,13 @@ bool SoftRenderer::RenderShadowMaskScanline(const GPU3D& gpu3d, RendererPolygon*
else abortscanline = false;
}
// note: if accuracy mode isn't enabled the abort flag never gets set, this is fine, because it also never gets used by fast mode.
// we cap it to 256 *after* counting the cycles, because yes, it tries to render oob pixels.
if (xend > 256)
{
r_edgelen += 256 - xend;
xend = 256;
}
// for shadow masks: set stencil bits where the depth test fails.
// draw nothing.
@ -1213,7 +1219,6 @@ bool SoftRenderer::RenderPolygonScanline(const GPU& gpu, RendererPolygon* rp, s3
s32 xlimit;
s32 xcov = 0;
if (xend > 256) xend = 256;
if (accuracy)
{
@ -1228,6 +1233,13 @@ bool SoftRenderer::RenderPolygonScanline(const GPU& gpu, RendererPolygon* rp, s3
else abortscanline = false;
}
// note: if accuracy mode isn't enabled the abort flag never gets set, this is fine, because it also never gets used by fast mode.
// we cap it to 256 *after* counting the cycles, because yes, it tries to render oob pixels.
if (xend > 256)
{
r_edgelen += 256 - xend;
xend = 256;
}
// part 1: left edge
edge = yedge | 0x1;